Winding indicator foe time pieces



(No ModeL) R. HEUNSGH.

WINDING INDICATOR FOR TIME PIECES.

No. 307,043. Pad-tented 001:. 21,1884,

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NITED STATES Parent FFICE.

RUDOLPII I-IEUNSCH, OF IVASIIINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TOMAX GOLDSMITH, OF SAME PLACE.

WINDiNG-INDICAT-GR FORTlME-PIECES.

SPECIFICATION forming part of Letters Patent No. 307,043, dated October21,1884.

Application filed June 4, 1884.

(No model.)

- invented certain Improvements in \Vinding- Indicators forSpring-Motors, \Vatches, &c., of which the following is a specification.

'The object of this invention is to provide a simple attachment forspring-actuated mechanisms-such as spring-motors,watches, &c. in whichgoing-barrels are used, to indicate at all times the extent to which themainspring is wound.

To this end it consists in an indicating mech anism operated by thepeculiar arrangement of devices hereinafter described from asupplemental wheel having a frictional connection with the barrel.

For convenience of illustration I have represented my improvement asapplied to a watchmovement.

The drawings represent so much of the same as is necessary to anunderstanding of the invention, the remaining portion of theorganization being identical with .those in common use.

Referring to the accompanying drawings, Figure 1 represents a face viewof the movement with the dial removed, a portion of the click-wheel forholding the mainspring under tension being broken away in order to showthe action of the other parts. Fig. 2 is a section on the line a x ofFig. 1. Fig. 3 is a diagram on an enlarged scale, illustrating moreclearly the manner in which the indicating mechanism is actuated fromthe barrel. Fig. at is a top plan View of the barrel and frictiondevices connected therewith.

Referring to the drawings, A represents the front plate of the movement,B, the windingarbor, to one end of which the spring is secured, C,theusual ratchet-wheel or click-wheel secured to the arbor, and engaged bya pawl or -click, D, to prevent a retrograde motion of the arbor, andthus hold the spring under tension and E, the going-barrel, whichincloses and is secured to the outer end of the mainspring, andprovided, as usual, with the gearteeth a, through which motion istransmitted to the train or movcmentof the watch in the ordinary manner.

\Vith the exception of a peculiarity in the pawl or click, which will bepresently explained, the foregoing parts have the ordinary mode ofaction.

In applying my improvement I mount at one end of the barrel, looselyaround the winding-arbor, a spur-wheel, G, which may have teeth of aratchet form or of any other suitable form. I connect this wheel withthe barrel by means of frictional devices of the form hereinafterdescribed, or of any other suitable form, whereby it is caused torevolve in a forward direction with the barrel under ordinarycircumstances, but permitted to turn in abackward directionindependently ofthe barrel dur ing the winding operation, when it issubjected to a strain sufficient to overcome the resistance of thefrictional devices.

The pawl D, instead of being terminated at or near its pivot I), asusual, is extended beyond the same in the form of an arm, 0, to theouter end of which there is pivoted a second pawl or click, (1, arrangedin position to e11- gage the frietionally driven wheel G. The pawl (l isprovided with an arm, (1, the move- 'ment of which in one direction islimited by means of a pin, (1, mounted on the arm of the main pawl D. Aspring, t, acts against the arm of the secondary pawl, as shown in Fig.

1, for the purpose of urging its end inward toward the wheel G, for thepurpose hereinafter explained. A spring, I-I, acts upon the main pawl D,as usual, to holdits active end in engagement with themain wheel 0. henthe arbor is turned to wind the spring, the ratchet- 8 5 wheel turnstherewith, as usual. As each tooth of the wheel passes the inner end ofthe pawl D it forces the same outward, causing its opposite end to swinginward and advance the pawl 1) against the teeth of the frictionally- 0held wheel G. In this manner the wheel Gis turned forward tooth by toothin the opposite direction from that in which the wheel C revolves, thetwo wheels being turned to the same extent. In other words, the rotationof 5 the wheel C in a backward direction imparts a like motion in theopposite direction to the wheel G. 'When the main pawl D engages behindthe tooth of the wheel C, the pawl d at its opposite end is carriedwholly out of engagemo ment with the wheel G, in the manner representedin Fig. 1, and the parts remain nor mally in this position, the pawl (I,remaining wholly inactive during the operation of the watch.

lVith the wheel G, I propose to connect the gear-train, of any suitablecharacter, for operating the indicator.

The construction of the train and of the indicator may be modified toany extent desired, provided they have a mode of action substantiallysuch as that represented in the drawin This train sl lOWll consists of awheel, I, engaging permanently with the wheel G, and carrying 011 itsspindle a pinion, J, which in turn drives a large gear-wheel, 1(, fixedupon the same arbor with the pinion L. The pinion L in turn engages aspur-wheel, M, the shaft of which is extended through a dial.andprovided on the forward end with a pointer or indicator, 0, arrangedto travel over a suitably graduated scale.

Passing now to the details of the frictional connectionbetween the wheelG and the drum, attention is mrticularly directed to Figs. 2 and 8. Thewheel G is made in an annular or ring for1n,and is fitted to revolveloosely around a hub or boss, g, formed centrally on the top of thebarrel. An elastic plate to washer 1:2, having a series of radial arms,is affixed ecu; trally on the hub or projection on the barrel, the endsof its arms bearing upon the wheel (l, as shown. The friction of thisplate upon the wheel and the friction produced by the pressure ofthelatter against the barrel is sufficient to cause the wheel G torevolve with the barrel in the ordinary operation of the parts.

The operation of the entire device is as fol lows: The normal positionof the parts while the watch is running is represented in Fig. 1. Thepawl D, engaging the ratchetavhccl (J, holds the spring under tension,while the secondary pawl. d is wholly inactive and out of engagementwith the wheel (l. The barrel revolves as usual with the spring, and1111- parts motion through the friction devices to the wheel (l, whichin turn, through the intermediate mechanism, causes the pointer orindicator to traverse the dial from the point which indicates that thespring is wound toward that which indicates that it is unwound. W'henthe winding of the watch has commenced, the wheel U is turned in abackward direction on the arbor, causing a vibratory motion to beimparted to the pawl 1), whereby the secondary pawl (1. at the oppositeend is caused to actuate the wheel (l in a positive manner, overcomingthe resistance of the frictional devices, and compelling the wheel torevolve in the opposite direction from that of the barrel. The effect ofthis reverse rotation of the wheel G is, through the intermediate train,to turn the indicator or pointer t) backward toward the point whichindicates that the spring is wound.

The essence of the invention consists in the ein wloymcnt of a pawl oret' uivaleut device by which motion is imparted from teeth orprojt'zctions on the ratchet-wheel (.1 to a wheel for returning thepointer to its original position.

It will. be manifest to those skilled .in the art that the details ofconstruction and arrangement may be modified in various respects withoutpassing beyond the limits of my invention or changing the general modeof action.

Having thus describedmyinvention, what; I claim is- 1. Anactuating-spring, a goingbarrcl, and a wimling-arbor connected toopposite ends thereof in combination with a toothed wheel fixed torevolve with the arbor, a second toothed wheel connected by frictionaldevices with the barrel, a pawl actuated by the backward rotation of thefirst-na1ned wheel, and serving to turn the second wheel in a reversedirection, and a winding-indicattuactuated by the second wheel.

2. A mainspring and a windlug-arbor and going-barrel connectedtherewith, in combination with a toothed wheel fast on the arbor. apawl. engaging said wheel, a second wheel connected by frictional.devices with the barrel, and a secondary pawl mounted on the first pawland engaging the second wheel, whereby the backward rotation of thearbor and its wheel is caused to actuate the second pawl and turn thesecond wheel in the revtn'sc direction.

The mainspring, the going-barrel, the arbor, the toothed wheel fast onthe arlmr, and the second wheel connected through frictional deviceswith the barrel, in combination with a vibrati ng devi cc,substan tiallyas shown, actuated by the teeth of theiirst wheel and. engaging theteeth of the second wheel to turn the same in the reverse direction.

4. A mainspring, winding-arbor, and goingbarrel, in. con'ibinatiou witha rotary winding indicator, a wheel attached to the arbor, a pawlengaging the teeth of said wheel, and in termcdiate gearing,substantially as described, actuated by the pawl to turn the indicatm'in a limclnvard direction.

5. The barrel, the wheel (:r, and springwasher It, in combination withthe main spring, the winding-arbor B, the wheel 4. thereon, the pawlll), spring H, pawl (I, step (1, spring d, and an indicator actuated bywheel (l.

ti. A mainspring, a barrel which turns at ways in one direction, anarbor which turns only in theoppr..-sitedirection, a tioothedwheel fastto the arbor, a s rringactuated pawl engaging said wheel, a second wheelindepend ent of the first, and a dog or pawl to turn the second wheel,connect ed with and receiving motion from the iirstnamed pawl.

\Vitnesses:

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